an old friend,passed away now,was tired of not being able to do enough large brass at once.he shot a lot of 30/06,and liked to to large batches say 500 or at a shot.his wifes clothes dryer quit heating but still rotated,with a little duct tape over the vents and the blower disconnected he had a pretty darned big tumbler.seems like it held at least 50 lbs of media.he set it up on his back porch,i think with the heat elements unhooked/not working it only needed 120v.worked pretty good as i recall.i don't remember how many brass could be done at a time but it was a pile.myself,i prefer the lyman,i have the 1200 uniflow,although i find it easier to just dump the brass and sift it,oh and walnut media seems to be quickest.
how bout one hooked up to a stationary excersize bike,i bet that would work pretty good,get your excercise and some clean brass.lol